Effect of Sex and Age on Serum Biochemical Reference Ranges in C57BL/6J Mice
Abstract:The C57BL/6J mouse strain is widely used as a common genomic background for many gene-modified murine models. However, few data on its clinical biochemistry are available. Therefore, we conducted a study to provide new protocols for serum biochemical screening and developed the reference range for a set of 13 analytes that pertain to lipoprotein metabolism, electrolyte balance, and data reflecting function of the heart, liver, kidneys, and pancreas. Male and female mice were studied, and blood samples were obtained at six and 20 weeks of age. Of 13 parameters studied, 12 were affected by age and sex. Briefly, male mice had higher triglycerides, cholesterol, high-density lipoprotein cholesterol, glucose, and amylase values. With age, mice of both sexes developed higher triglycerides and glucose concentrations, as well as aspartate and alanine transaminase activities. A significant difference between mice and humans was noted for amylase activity, which is extremely high in this healthy mouse strain. Therefore, we suggest that caution should be taken when data are interpreted to indicate gastrointestinal disease in murine models. The reference values for murine clinical biochemical analytes obtained during the study reported here should be useful for characterizing the biochemical phenotype of experimental mice.
Document Type: Research Article
Affiliations: Centre for Molecular Medicine L8:03, Department of Medicine, Karolinska Hospital, S-17176 Stockholm, Sweden
Publication date: April 1, 2004
Comparative Medicine (CM), an international journal of comparative and experimental medicine, is the leading English-language publication in the field and is ranked by the Science Citation Index in the upper third of all scientific journals. The mission of CM is to disseminate high-quality, peer-reviewed information that expands biomedical knowledge and promotes human and animal health through the study of laboratory animal disease, animal models of disease, and basic biologic mechanisms related to disease in people and animals.
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